package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.*;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private ReportService reportService;

    /**
     * 这里需要回显的数据格式
     * {
     *     "data":{
     *         "months":["2019.01","2019.02","2019.03","2019.04"],
     *         "memberCount":[3,4,8,19]
     *     },
     *     "flag":true,
     *     "message":"获取会员统计数据成功"
     * }
     */
    //会员数量折线图数据
    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        Map<String, Object> map = new HashMap<>();
        List<String> months = new ArrayList<>();
        Calendar calendar = Calendar.getInstance(); //获取日历对象,模拟时间就是当前时间
        //计算过去一年的12个月
        calendar.add(Calendar.MONTH,-12);//当前时间往前推12个月
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH,1);//获取当前时间往后推一个月
            Date date = calendar.getTime();
            months.add(new SimpleDateFormat("yyyy.MM").format(date));
        }
        map.put("months", months);

        List<Integer> memberCount = memberService.findMemberCountByMonths(months);
        map.put("memberCount", memberCount);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }

    /**
     * 根据指定时间段查询 会员数量折线图数据
     * @param map
     * @return
     */
    @PostMapping("/getMemberReportDate")
    public Result getMemberReportDate(@RequestBody Map map){
        try {
            Map result = memberService.findMemberReportDate(map);
            return new Result(true,MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,result);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    /**
     * {
     * "data":{
     *      "setmealNames":["套餐1","套餐2","套餐3"],
     *      "setmealCount":[
     *          {"name":"套餐1","value":10},
     *          {"name":"套餐2","value":30},
     *          {"name":"套餐3","value":25}
     *      ]
     * },
     * "flag":true,
     * "message":"获取套餐统计数据成功"
     * }
     */
    //套餐预约占比饼形图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        Map<String, Object> data = new HashMap<>();

        try {
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();
            data.put("setmealCount", setmealCount);

            List<String> setmealNames = new ArrayList<>();

            for (Map<String, Object> map : setmealCount) {
                String name = (String) map.get("name");  //套餐名字
                setmealNames.add(name);
            }
            data.put("setmealNames", setmealNames);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    /**
     {
         "data":{
               "todayVisitsNumber":0,
               "reportDate":"2019-04-25",
               "todayNewMember":0,
               "thisWeekVisitsNumber":0,
               "thisMonthNewMember":2,
               "thisWeekNewMember":0,
               "totalMember":10,
               "thisMonthOrderNumber":2,
               "thisMonthVisitsNumber":0,
               "todayOrderNumber":0,
               "thisWeekOrderNumber":0,
               "hotSetmeal":[
                       {"proportion":0.4545,"name":"粉红珍爱(女)升级TM12项筛查体检套餐","setmeal_count":5},
                       {"proportion":0.1818,"name":"阳光爸妈升级肿瘤12项筛查体检套餐","setmeal_count":2},
                       {"proportion":0.1818,"name":"珍爱高端升级肿瘤12项筛查","setmeal_count":2},
                       {"proportion":0.0909,"name":"孕前检查套餐","setmeal_count":1}
               ],
        },
        "flag":true,
        "message":"获取运营统计数据成功"
      }
     */
    //运营数据统计
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String, Object> data = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据,准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
            //基于提供的Excel模板文件在内存中创建一个Excel对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);  //日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);  //本日新增会员数
            row.getCell(7).setCellValue(totalMember);  //总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {  //热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);  //套餐名称
                row.getCell(5).setCellValue(setmeal_count);  //预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());  //占比
            }

            //使用输出流进行表格下载,基于浏览器作为客户端下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");  //代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");  //指定以附件形式下载
            excel.write(out);

            out.flush();
            out.close();
            excel.close();
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }

    }


    //导出PDF数据
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();

            //取出返回结果数据,准备将报表数据写入到PDF中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获取PDF模板文件绝对路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jasper";

            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            //填充数据---使用JavaBean方式
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));

            //创建输出流,用于服务器写入数据到客户端浏览器
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");

            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint, out);

            out.flush();
            out.close();


            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }

    }

}
